handle node tree in lib_query.c

1 files changed, 9 insertions, 2 deletions

diff --git a/source/blender/blenkernel/intern/lib_query.c b/source/blender/blenkernel/intern/lib_query.c
index 90525fdde3c..adc7d205301 100644
--- a/source/blender/blenkernel/intern/lib_query.c
+++ b/source/blender/blenkernel/intern/lib_query.c
@@ -1285,6 +1285,15 @@ static void library_foreach_ID_link(Main *bmain,
         }
         break;
       }
+      case ID_SIM: {
+        Simulation *simulation = (Simulation *)id;
+        if (simulation->nodetree) {
+          /* nodetree **are owned by IDs**, treat them as mere sub-data and not real ID! */
+          library_foreach_ID_as_subdata_link(
+              (ID **)&simulation->nodetree, callback, user_data, flag, &data);
+        }
+        break;
+      }
 
       /* Nothing needed for those... */
       case ID_IM:
@@ -1294,8 +1303,6 @@ static void library_foreach_ID_link(Main *bmain,
       case ID_PAL:
       case ID_PC:
       case ID_CF:
-      case ID_SIM:
-        break;
 
       /* Deprecated. */
       case ID_IP: